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Dictionary » P » Permeability

Permeability

Definition

noun

(1) The property or state of being permeable (as by osmosis or diffusion).

(2) The property of a porous material to permit a liquid or gas to pass through.

(3) (geology) The ability of a rock, soil or sediment to transmit water.

(4) (physics) Magnetic permeability.


Supplement

Word origin: LL permeābilis, equiv. to permeā(re) to permeate.
Related forms: permeable (adjective).

Related terms:


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what is the relationship between hemolysis & molecular weigh

is it true that as the lipid water partition coefficient increases, the permeability of lipid increases and the permeability of water lowers. does that mean that a substance w/ a high lipid water partition coeffecient will be able to go through the cell membrane ...

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by Fa23
Sat Sep 22, 2012 11:35 pm
 
Forum: Physiology
Topic: what is the relationship between hemolysis & molecular weigh
Replies: 1
Views: 951

Oxygen Only Metabolism

how does metabolic activity affect k permeability?

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by ozil
Sun Feb 12, 2012 6:35 pm
 
Forum: General Discussion
Topic: Oxygen Only Metabolism
Replies: 3
Views: 770

Re: speed of osmosis?

... smaller molecules diffuse faster than larger molecules. Think about the relationship of diffusion and osmosis. In addition to diffusion, membrane permeability is a factor -- that's Jack's cats and elephants metaphor. The combination of diffusion rate and membrane permeability determines the rate ...

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by jonmoulton
Thu Feb 09, 2012 4:07 pm
 
Forum: General Discussion
Topic: speed of osmosis?
Replies: 8
Views: 2123

Re:

... the cell. but tonoplast usually doesn't allow to the water to enter to the cytoplasm. (vacuole's tonoplast has an attribute named "selective permeability" cause it) I hope you had got what I mean.

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by Maatomaat
Thu Nov 24, 2011 10:40 am
 
Forum: Cell Biology
Topic: Plant vacuole
Replies: 8
Views: 3994

Re: Urine formation

... Below is a brief of what I found out cocerning the question :The amount of water saved and the final concentration of the urine depend on the permeability of the walls of the collecting duct. When the blood osmotic pressure increases, as duringg dehydration, more ADH is released from the pituitary ...

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by chikis
Mon Nov 14, 2011 12:35 pm
 
Forum: Physiology
Topic: Urine formation
Replies: 7
Views: 3079
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